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This change has been made by an automated script, maintained by the
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** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags added: precise
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https://bugs.launchpad.net/bugs/1328866
Title:
rcu_bh detected stall alway occur
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
I have many server running on Ubuntu 12.04 LTS kernel 3.2.0-23-generic,
but something strange happened in recently. [rcu_bh detected stall] happend
many times.Sometime kernel will die,sometime just a warning in dmesg when
[rcu_bh detected stall] happen.
**********************************************************
server information:
kernel: Ubuntu 3.2.0-23.36-generic 3.2.14
CPU: Intel(R) Xeon(R) CPU E5-2620 0 @ 2.00GHz
Intel Corporation I350 Gigabit Network Connection
**********************************************************
Jun 11 15:44:10 [14380700.988692] INFO: rcu_bh detected stall on CPU 19 (t=0
jiffies)
Jun 11 15:44:10 [14380700.994604] sending NMI to all CPUs:
Jun 11 15:44:10 [14380701.000547] NMI backtrace for cpu 0
Jun 11 15:44:10 [14380701.006244] CPU 0
Jun 11 15:44:10
Jun 11 15:44:10 [14380701.006321] Modules linked in:
.........
.........
.........
un 11 15:44:16 [14380702.300237] NMI backtrace for cpu 19
Jun 11 15:44:16 [14380702.300239] CPU 19
Jun 11 15:44:16 [14380702.300240] Modules linked in: iptable_raw netconsole
configfs tcp_diag inet_diag mptctl mptbase xt_multiport nf_conntrack_ipv4
nf_defrag_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables bnep
rfcomm bluetooth vesafb ipmi_poweroff ipmi_watchdog ipmi_devintf ipmi_si
ipmi_msghandler joydev sb_edac lp parport acpi_pad edac_core mac_hid ioatdma
wmi usbhid hid mpt2sas scsi_transport_sas igb dca raid_class
Jun 11 15:44:16 [14380702.300366]
Jun 11 15:44:16 [14380702.300373] Pid: 0, comm: swapper/19 Tainted: G
O 3.2.0-23-generic #36-Ubuntu /
Jun 11 15:44:16 [14380702.300390] RIP: 0010:[<ffffffff81036b8b>]
[<ffffffff81036b8b>] __x2apic_send_IPI_mask+0x15b/0x180
Jun 11 15:44:16 [14380702.300436] igb 0000:05:00.0: Detected Tx Unit Hang
Jun 11 15:44:16 [14380702.300439] Tx Queue <1>
Jun 11 15:44:16 [14380702.300440] TDH <f4b>
Jun 11 15:44:16 [14380702.300442] TDT <f4b>
Jun 11 15:44:16 [14380702.300452] next_to_use <f4b>
Jun 11 15:44:16 [14380702.300454] next_to_clean <dfd>
Jun 11 15:44:16 [14380702.300455] buffer_info[next_to_clean]
Jun 11 15:44:16 [14380702.300457] time_stamp <1d6b49a03>
Jun 11 15:44:16 [14380702.300467] next_to_watch <ffff88084a14dfe0>
Jun 11 15:44:16 [14380702.300469] jiffies <1d6b49b48>
Jun 11 15:44:16 [14380702.300471] desc.status <108201>
Jun 11 15:44:16 [14380702.300486] RSP: 0018:ffff88107fce3d38 EFLAGS:
00000087
Jun 11 15:44:16 [14380702.300500] RAX: 0000000000000100 RBX:
ffff88107fcedb80 RCX: 0000000000000007
Jun 11 15:44:16 [14380702.300503] RDX: 0000000000000007 RSI:
0000000000000100 RDI: 0000000000000000
Jun 11 15:44:16 [14380702.300505] RBP: ffff88107fce3d98 R08:
ffff88107fcedba0 R09: 0000000000000100
Jun 11 15:44:16 [14380702.300508] R10: 000000002b300055 R11:
0000000000000000 R12: ffff88107fc0dba0
Jun 11 15:44:16 [14380702.300510] R13: 000000000000dbc0 R14:
0000000000080000 R15: 0000000000020fff
Jun 11 15:44:16 [14380702.300513] FS: 0000000000000000(0000)
GS:ffff88107fce0000(0000) knlGS:0000000000000000
Jun 11 15:44:16 [14380702.300516] CS: 0010 DS: 0000 ES: 0000 CR0:
000000008005003b
Jun 11 15:44:16 [14380702.300518] CR2: 00007ff939554be0 CR3:
0000000001c05000 CR4: 00000000000406e0
Jun 11 15:44:16 [14380702.300527] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Jun 11 15:44:16 [14380702.300529] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
Jun 11 15:44:16 [14380702.300532] Process swapper/19 (pid: 0, threadinfo
ffff88084c120000, task ffff88084c118000)
Jun 11 15:44:16 [14380702.300534] Stack:
Jun 11 15:44:16 [14380702.300542] ffff88107fcee7c0 0000000000000092
000000137fce3da8 000000000000dba0
Jun 11 15:44:16 [14380702.300559] 0000010000000002 0000000000000013
ffff88107fce3db8 0000000000002710
Jun 11 15:44:16 [14380702.300582] ffffffff81c30900 ffffffff81c30b00
ffff88107fcee7c0 0000000000000000
Jun 11 15:44:16 [14380702.300600] Call Trace:
Jun 11 15:44:16 [14380702.300617] <IRQ>
Jun 11 15:44:16 [14380702.300634] [<ffffffff81036bcc>]
x2apic_send_IPI_all+0x1c/0x20
Jun 11 15:44:16 [14380702.300640] [<ffffffff810326a1>]
arch_trigger_all_cpu_backtrace+0x61/0xa0
Jun 11 15:44:16 [14380702.300655] [<ffffffff810e0877>]
check_cpu_stall.isra.36+0x97/0xf0
Jun 11 15:44:16 [14380702.300667] [<ffffffff810e0908>]
__rcu_pending+0x38/0x1b0
Jun 11 15:44:16 [14380702.300677] [<ffffffff810e0ecb>]
rcu_check_callbacks+0x1cb/0x1e0
Jun 11 15:44:16 [14380702.300701] [<ffffffff81078928>]
update_process_times+0x48/0x90
Jun 11 15:44:16 [14380702.300721] [<ffffffff8109c4b4>]
tick_sched_timer+0x64/0xc0
Jun 11 15:44:16 [14380702.300748] [<ffffffff8108eba8>]
__run_hrtimer+0x78/0x1f0
Jun 11 15:44:16 [14380702.300771] [<ffffffff8109c450>] ?
tick_nohz_handler+0x100/0x100
Jun 11 15:44:16 [14380702.300787] [<ffffffff8108f433>]
hrtimer_interrupt+0xe3/0x200
Jun 11 15:44:16 [14380702.300817] [<ffffffff81667689>]
smp_apic_timer_interrupt+0x69/0x99
Jun 11 15:44:16 [14380702.300830] [<ffffffff8166555e>]
apic_timer_interrupt+0x6e/0x80
Jun 11 15:44:16 [14380702.300842] <EOI>
Jun 11 15:44:16 [14380702.300886] [<ffffffff81056c9c>] ?
update_shares+0xcc/0x100
Jun 11 15:44:16 [14380702.300900] [<ffffffff8136b42d>] ?
intel_idle+0xed/0x150
Jun 11 15:44:16 [14380702.300910] [<ffffffff8136b40f>] ?
intel_idle+0xcf/0x150
Jun 11 15:44:16 [14380702.300925] [<ffffffff81504a01>]
cpuidle_idle_call+0xc1/0x280
Jun 11 15:44:16 [14380702.300947] [<ffffffff8101222a>] cpu_idle+0xca/0x120
Jun 11 15:44:16 [14380702.300970] [<ffffffff8163a7fa>]
start_secondary+0xd9/0xdb
Jun 11 15:44:16 [14380702.300986] Code: 80 cc 04 83 7d c0 02 0f 44 f0 89 f6
e8 0f 64 00 00 66 90 b9 00 01 00 00 4c 89 e2 48 89 de 48 89 df e8 9a 36 2e 00
e9 2d ff ff ff <48> 8b 7d a8 57 9d 66 66 90 66 90 48 83 c4 38 5b 41 5c 41 5d 41
Jun 11 15:44:16 [14380702.301061] Call Trace:
Jun 11 15:44:16 [14380702.301064] <IRQ> [<ffffffff81036bcc>]
x2apic_send_IPI_all+0x1c/0x20
Jun 11 15:44:16 [14380702.301123] [<ffffffff810326a1>]
arch_trigger_all_cpu_backtrace+0x61/0xa0
Jun 11 15:44:16 [14380702.301156] [<ffffffff810e0877>]
check_cpu_stall.isra.36+0x97/0xf0
Jun 11 15:44:16 [14380702.301170] [<ffffffff810e0908>]
__rcu_pending+0x38/0x1b0
Jun 11 15:44:16 [14380702.301189] [<ffffffff810e0ecb>]
rcu_check_callbacks+0x1cb/0x1e0
Jun 11 15:44:16 [14380702.301234] [<ffffffff81078928>]
update_process_times+0x48/0x90
Jun 11 15:44:16 [14380702.301253] [<ffffffff8109c4b4>]
tick_sched_timer+0x64/0xc0
Jun 11 15:44:16 [14380702.301267] [<ffffffff8108eba8>]
__run_hrtimer+0x78/0x1f0
Jun 11 15:44:16 [14380702.301278] [<ffffffff8109c450>] ?
tick_nohz_handler+0x100/0x100
Jun 11 15:44:16 [14380702.301303] [<ffffffff8108f433>]
hrtimer_interrupt+0xe3/0x200
Jun 11 15:44:16 [14380702.301319] [<ffffffff81667689>]
smp_apic_timer_interrupt+0x69/0x99
Jun 11 15:44:16 [14380702.301329] [<ffffffff8166555e>]
apic_timer_interrupt+0x6e/0x80
Jun 11 15:44:16 [14380702.301335] <EOI> [<ffffffff81056c9c>] ?
update_shares+0xcc/0x100
Jun 11 15:44:16 [14380702.301365] [<ffffffff8136b42d>] ?
intel_idle+0xed/0x150
Jun 11 15:44:16 [14380702.301381] [<ffffffff8136b40f>] ?
intel_idle+0xcf/0x150
Jun 11 15:44:16 [14380702.301392] [<ffffffff81504a01>]
cpuidle_idle_call+0xc1/0x280
Jun 11 15:44:16 [14380702.301407] [<ffffffff8101222a>] cpu_idle+0xca/0x120
Jun 11 15:44:16 [14380702.301430] [<ffffffff8163a7fa>]
start_secondary+0xd9/0xdb
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